Description
OpenEMR before 8.3.0 contains an insecure direct object reference vulnerability in OnsiteDocumentController::Query() that allows authenticated portal patients to bypass the lowercase pid authorization guard by supplying a capitalised Pid parameter. Attackers can request the api/onsitedocuments endpoint with Pid set to another patient's id to overwrite the session-pinned criteria and read other patients' onsite documents containing PHI.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| openemr | openemr | < 8.3.0 | 8.3.0 |
References
- GitHub Security Advisory (GHSA-39jh-r9hg-rwg7) vendor-advisory
- VulnCheck Advisory: OpenEMR before 8.3.0 Patient Portal IDOR via Case-Sensitive Pid Parameter third-party-advisory